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Finding the Fourth Proportional to 62,893.32, 86,721.66 and 48,520.68

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Solution

The fourth proportional to 62,893.32, 86,721.66 and 48,520.68 is: 66,903.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,893.32 : 86,721.66 = 48,520.68 : x
  2. Step 2: Convert to fraction form
    62,893.32/86,721.66 = 48,520.68/x
  3. Step 3: Cross multiply
    62,893.32x = 86,721.66 × 48,520.68
  4. Step 4: Simplify right side
    62,893.32x = 4,207,793,913.93
  5. Step 5: Solve for x
    x = 4,207,793,913.93/62,893.32
  6. Step 6: Final answer
    x = 66,903.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.